Cheapest return flights from Ontario to Sao Paulo in September from $929

AirHint found the following cheapest return flights from Ontario (ONT) to Sao Paulo (GRU) in September 2025 (see full year).

Return flights

06 Sep - 09 Sep Avianca
23 Sep - 27 Sep Avianca
02 Sep - 09 Sep Avianca
23 Sep - 02 Oct Avianca
27 Sep - 07 Oct Avianca
13 Sep - 16 Sep Avianca
09 Sep - 18 Sep Avianca
06 Sep - 15 Sep Avianca
23 Sep - 03 Oct Avianca
13 Sep - 29 Sep Avianca
01 Sep - 11 Sep LATAM Airlines Group
05 Sep - 12 Sep LATAM Airlines Group
06 Sep - 14 Sep LATAM Airlines Group

Also check the deals for one-way flights from Ontario to Sao Paulo in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Sao Paulo

Cheap car rent in Sao Paulo

Feel free to contact us with any feedback or request another flight research.